Root cause of the provision-time 504s: netbird home-lab-network (192.168.8.0/24) had no active routing peer — mac-mini routing peer's netbird daemon was down, so all home-backed public services (artifacto/blog/trmnl) 504'd at the VPS edge. netbird up on mac-mini restored it; verified trmnl public 200/401, artifacto 200. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>